Just die cut a few of the Banner Border E and F cuts, glue the straight edge, and pinch them together. You can use your new petals as-is, or layer them like I did here. Then put some glue on a small punched circle, and lay that on top of all the petals so they stay together as a flower. Burlap and another small circle punch on top complete the center.

The color palette on this card makes it so cheerful. And great job on working those dies. The banners turned flower is very clever, but I especially appreciate the leafy vine used as a 'scalloped' border. It's wonderful.